Successful Deployment of Tractor Conveyed Perforation in a Horizontal Well: Designing, Execution, Results and Lessons Learnt
| Autor: | A. Shah, Jyoti Prakash Nayak, S. Vermani, Arunabh Parasher, Manish Dutt Kothiyal, I. Goyal, Thomas Pinto, N. Pandey, Sharad Kumar Goenka |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Tractor
03 medical and health sciences 0302 clinical medicine business.product_category 010201 computation theory & mathematics Software deployment 030220 oncology & carcinogenesis Perforation (oil well) Operations management 0102 computer and information sciences business 01 natural sciences Geology |
| Zdroj: | Day 1 Mon, November 14, 2016. |
| DOI: | 10.2523/iptc-18762-ms |
| Popis: | Well X is a horizontal oil producer in AB-3 formation of the B field situated in the RJ-ON-90/1 block of Western India. Intervention in a horizontal well is inherently challenging, but the complex completion equipment of this well imposed additional challenges due to multiple ID changes along the well bore. The 8.5" OH section is completed with Inflow Control Device (ICD) screens and Swell Packers, middle completion consists of Packer and a Reservoir Control Valve (RCV) section set in the 9-5/8" production casing. Finally with 4.5" production tubing – and the production packer, upper completion was lowered but end of tubing was lying 8 m above the RCV section exposing 9-5/8" casing section also during any intervention. After the initial completion when well was put online, it couldn’t flow naturally and was activated with nitrogen. Post activation it was observed that a well with 500 m of clean sand along the lateral section and productivity index (PI) of 150 b/d/psi was flowing with a PI of ~ 10 b/d/psi which also was not sustained and well was put on artificial lift. After attempting various stimulation techniques and correlating with offset wells, it was decided to perforate the screen section of the horizontal. E-line conveyed Tractor assisted gun deployment system was selected to access the high angle well bore and perforate the screens. Apart from high deviation, the intervention unfriendly completion posed a major challenge to successfully RIH and POOH without a stuck tool or a tool lost-in-hole (LIH) situation. Extensive job planning, designing, and intervention modeling was completed before attempting the operation. The perforation job was carried out as a pilot test in 6 m of the 500 m OH section and resulted in ~ 1500 bopd of incremental oil in the initial well production. Analysis of the entire pilot project from the economics, technology and opportunity triangle, demonstrated the value of the technology and its usefulness in the future. The paper endeavors to discuss the entire case while detailing the salient features like candidate selection, job designing and planning, challenges involved and lessons learnt during the successful execution of the intervention, also making it first of its kind horizontal perforation in the India. The learning and information shared will surely be useful in future to all such planned interventions into a high angle well especially during critical jobs like perforation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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